Feature: 1. MULTI APPLICATIONS: OTDR tester can be used to evaluate the construction and maintenance of FTTx and access network, identify optical fiber breakpoints, measure the length of optical cable, and calculate the relative optical power loss. 2. 6 FUNCTIONS: OTDR optical fiber tester has six functions: optical time domain reflectometer, optical power meter, stable light source, visual fault location, LED lamp, event map, highly practical. 3. TOUCH SCREEN: The OTDR optical fiber tester adopts 3.5 inch color touch screen, which is easier to operate. 4. HIGH PERFORMANCE: With 1550nm stable light source, support 0 to 80km, support 8 wavelengths, the tester has a wide range of applications. 5. COMPACT DESIGN: Compact in size and light in weight, this optical fiber cable tester is convenient for carrying around. Specification: Item Type: OTDR Fiber Optic Tester Material: ABS Model: AUA 16A Connector Model: SC APC Stable Light Source: 1550nm OTDR: 0-80km Optical Power Meter: 8 wavelengths 850 980 1300 1310 1490 1550 1625 1650 Red Lighting: 10mw LED Light: Yes Dustproof Interface: SC interface for OTDR, 2.5mm interface for OPM PFL Display: 3.5 inch touch screen display Power Supply: Built in 3.7V 2200mah polymer battery (built in) Plug Voltage: 100-240V 6 Functions: Optical time domain reflectometer, optical power meter, stable light source, visual fault location, LED lamp, event map. Package List: 1 x OTDR Fiber Optic Tester1 x Manual1 x Charging Head1 x Charging Cable1 x Light Disk1 x Storage Bag